3Dsisu

3Dsisu is a fictional cross-platform 3D data interchange format and runtime environment designed to simplify the sharing, rendering, and interaction of 3D scenes and simulations. Conceived for educational and demonstrative purposes, the project provides a compact scene description language, a lightweight runtime, and a small set of core assets to illustrate data interoperability in 3D pipelines.

Origin and development: The concept was introduced in 2023 by a loose network of researchers and hobbyist developers. It emphasizes portability across desktops and web browsers, modularity through plugins, and a streaming architecture that reduces memory usage for large scenes. A reference implementation and a minimal editor were released under an open-source license as part of the illustrative project.

Technical overview: The 3Dsisu ecosystem centers on the 3DSIS file format, which combines a header with metadata and a scene graph encoded in a human-readable description language alongside binary asset blobs. The runtime supports physically based rendering, real-time lighting, animation, and basic physics. Tools include a converter to common formats such as glTF and OBJ and a web viewer via WebAssembly.

Architecture and data model: Scenes are composed of nodes, materials, textures, lights, cameras, and animations. The 3DSIS-Lang description allows nesting, referencing, and simple scripting for animation sequences. A plugin API enables integration with external renderers and platforms.

Impact and reception: In its fictional context, 3Dsisu is used in academic demonstrations and sandbox projects to illustrate interoperability principles. It offers a didactic alternative to more established formats by focusing on streaming, modularity, and ease of experimentation. Critics note limited real-world adoption outside the illustrative ecosystem.

See also: glTF, OBJ, FBX, USD, 3D scene description languages.